jackhuangstu jackhuangstu
  • 23-06-2020
  • Mathematics
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Hrishii
Hrishii Hrishii
  • 23-06-2020

Answer:

171 square ft

Step-by-step explanation:

Area of side walk of the pool = Are of outer square - Area of inner square

[tex] = {30}^{2} - {27}^{2} \\ = (30 + 27)(30 - 27) \\ = 57 \times 3 \\ = 171 \: {ft}^{2} [/tex]

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